E.0 Moving the Memcached Service to the Search Index Appliance

On a new large clustered deployment of Filr 1.1, Memcached runs on the Lucene search index appliance instead of the Filr appliance. When upgrading to Filr 1.1, it is recommended that you move Memcached from the Filr appliance to the Lucene search index appliance.

Memcached is used only in large clustered deployments (when the Filr system includes multiple Filr appliances).

To move Memcached so that it runs on the Lucene search index appliance after the Filr 1.1 system is running:

  1. If a firewall exists between any Filr appliances and Lucene search index appliances in the Filr deployment, ensure that port 11211 is open.

  2. Configure each Filr appliance in the cluster to use Memcached running on the search index appliance.

    You do this by logging in to each Filr appliance in the cluster, selecting memcached as the hibernate caching provider, and specifying the server address for any search index appliances in the cluster in the Server Address field.

    For more detailed information about how to do this, see Changing Clustering Configuration Settings in the Novell Filr 1.1 Administration Guide.

  3. Stop Memcached on any Filr appliances by running the following command from the console of the Filr appliance:

    rcmemcached stop

  4. Disable Memcached on the Filr appliance so that it is not re-enabled the next time the server is restarted by running the following command from the console of the Filr appliance:

    chkconfig memcached off